The subreddit r/TheyDidTheMath has a bunch of useless math calculations for real world “applications.” It’s quite similar to Fermi Questions, my favorite Science Olympiad event. Last night, I saw an xkcd that made me want to check it’s math.

Last night (technically this morning at like 4 am), I randomly thought about this tweet I saw a day ago: Hi, Twitter. This is the magic of an 84" softbox. pic.twitter.com/VP5GOgSQI9 — Jackson Hayes (@jacksonhvisuals) June 11, 2020 I thought back to when I shot a video in my room and got a similar lighting effect as that.